EP 3863871 A1 20210818 - VARIABLE SPEED FOR TRANSPORT ENGINELESS REFRIGERATION UNIT
Title (en)
VARIABLE SPEED FOR TRANSPORT ENGINELESS REFRIGERATION UNIT
Title (de)
VARIABLE DREHZAHL FÜR MOTORLOSE TRANSPORTKÜHLEINHEIT
Title (fr)
VITESSE VARIABLE POUR UN GROUPE FRIGORIFIQUE SANS MOTEUR DE TRANSPORT
Publication
Application
Priority
IB 2018001249 W 20181011
Abstract (en)
[origin: WO2020074935A1] A transportation refrigeration unit for cooling a cargo compartment includes a compressor configured to compress a refrigerant, a compressor motor configured to drive the compressor, an evaporator heat exchanger operatively coupled to the compressor and an evaporator fan configured to provide return airflow from a return air intake and flow the return airflow over the evaporator heat exchanger. A drive unit is configured to deliver variable frequency electrical power between a minimum frequency and a maximum frequency to the compressor motor and the evaporator fan. A frequency of the electrical power is based on one or more sensed parameters of the transportation refrigeration unit.
IPC 8 full level
CPC (source: EP US)
B60H 1/00428 (2013.01 - EP US); B60H 1/3232 (2013.01 - EP US); B60H 2001/3261 (2013.01 - EP US); B60H 2001/3272 (2013.01 - EP US); B60H 2001/3292 (2013.01 - EP US); Y02T 10/88 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020074935 A1 20200416; EP 3863871 A1 20210818; US 12077031 B2 20240903; US 2021221195 A1 20210722
DOCDB simple family (application)
IB 2018001249 W 20181011; EP 18807690 A 20181011; US 201815734651 A 20181011